Harmless to Your Fish: The soft silicone is harmless to all your fish. Non-toxic and odorless, whether you have a freshwater or saltwater tank, our ornaments will never harm your fish. Colorful sea world. 6 pieces of small jellyfish ornaments, it is a great hiding place for tropical fish and adds interesting decor to any aquarium. Your friends will be amazed at your aquarium and think it’s real jellyfish. Easy to make: the fixed line and the suction cups are separated, you need to tie a knot before using them, the suction cup should be placed at the bottom of the tank, and the string and the jellyfish should be more lower than the waterline. Ideal decoration: Incredibly detailed floating and graceful floating jellyfish imitation. (Won’t automatically move like real jellyfish with spirit..) Floating freely and graceful, ideal decoration for aquarium and fish tank. Note: This jellyfish simulation is not a type of light and cannot be self-illuminated in a dark environment. It must